Home / 1,397,397.15-1,927,848.20-880,981.11

Finding the Fourth Proportional to 1,397,397.15, 1,927,848.20 and 880,981.11

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Solution

The fourth proportional to 1,397,397.15, 1,927,848.20 and 880,981.11 is: 1,215,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,397.15 : 1,927,848.20 = 880,981.11 : x
  2. Step 2: Convert to fraction form
    1,397,397.15/1,927,848.20 = 880,981.11/x
  3. Step 3: Cross multiply
    1,397,397.15x = 1,927,848.20 × 880,981.11
  4. Step 4: Simplify right side
    1,397,397.15x = 1,698,397,842,742.60
  5. Step 5: Solve for x
    x = 1,698,397,842,742.60/1,397,397.15
  6. Step 6: Final answer
    x = 1,215,400.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.